export default {
  addCart(context, payload) {
    return new Promise((resolve,reject) => {
      //payload新添加的商品
    let oldProduct = context.state.cartList.find(item => item.iid === payload.iid)

    //2.判断oldProduct
    if (oldProduct) {
      // oldProduct.count +=1
      context.commit('addCounter', oldProduct)
      resolve('当前的商品数量+1')
    } else {
      payload.count = 1
      // state.cartList.push(payload)
      context.commit('addTocart', payload)
      resolve('添加了新的商品')
    }
    })
  }
}